Improvement in portable and road engines



2 Sheets-Sheet 1.

B. Your PORTABLE AND ROAD ENGINE.

No.177,052. Patented May 2,1876;

i 6L a u ATTESTZ INVENTOR:

N PEI'ERS, FHOTO-LITHOGRAPHER. WASHINGTON. D C.

2 Sheets-Sheet 2.

B. YOGH. PORTABLE AND ROAID'ENGINE. Ila-177.052. Patented May 2, 1216.

FIG.8.

N- PEI'ERS. PNOTO-LITHDBRAPHER, WASIIINGTOIL D C NI'IED STATES PATENTFFIGE. ,l

IMPROVEMENT IN PORTABLE AND ROAD ENGIN ES.

Specification forming part of Letters Patent No. I 77,052, dated May 2,1876; application filed February 5, 1876.

To all whom it may concern Be it known that I, BENHAR-D YOGH, of WestBelleville, in the county of St. Clair, State of Illinois, have inventeda new and useful Improvement in Combined Portable and Road Engines,which improvement is fully set forth in the following specification,

reference being had to the accompanying drawings.

My improvement relates to an engine intended for use chiefly when atrest, but which is capable of being moved from place to place by its ownmachinery and of drawing wagons, &c., with it.

Thefirst part of my improvement consists in forming the traction-wheelswith springcalks, which extend through the rim of the wheel, and whichare formed upon the ends of plate-springs attached to the inside of suchruns.

The second part of my improvement consists in the combination, with thetract-ionwheels, (each turning upon a separate axle,) of chain-gearconnection with two wheels on a single shaft, one of said wheels beingloose and the other tight upon the shaft. Attached to the hub of theloose chain-gear wheel is a spur-wheel engaging a spur-pinion on a shafthaving bearing eccentrically in a spur-wheel also turning loosely on themain shaft and receiving rotation from the engine. The other end of thepinion-shaft carries a chain-gear wheel, connected by chain-gear withthe main shaft, so as to cause the rotation of the shaft.

The result of this construction is that either of the traction-wheelsmay be turned separately bythe engine, (the other remaining at rest,) oreither of said wheels may be turned faster than the other, as isrequired in turning the engine on a curve.

The third part of my improvement applies to the steam-drum. "his extendssome distance above the boiler, and it's ends are connected to twoupright steam-vessels. The steam-pipe extending to the engine has itsmouth at or near the middle of the longituditudinal steam-drum, so thatin ascending or descending a hill (where the boiler is much inclined)the water will at no time be in contact with the mouth of thesteam-pipe.

The fourth part of my improvement consists section.

in the construction of steering apparatus. In this there is a verticalshaft, having at bottom crossarms, whose ends are connected to the foreaxlev and whose upper end carries a screw-gear wheel, turned by agear-screw on a shaft turned by ahand-wheel or crank at the furnace endof the machine.

Figure 1 is a side view of engine, part in Fig. 2 is a top view. Fig. 3is a detail side view of feed-water apparatus. Fig. 4 is a detail, partin side elevation and part in section, illustrating part of thegear-connection between the engine and tractionwheels. Fig. 5 is asection at 02 ac, Fig. 4.

- The two traction-wheels A A are similarly constructed, having asufliciently broad tread or rim, a, with transverse slots a in whichwork the spring-calks a These calks form the outwardly-bent ends of theplate-springs a whose other ends are attached to the. insides of therims a. The calks are to prevent the wheels from slipping in situation'where. this would otherwise take place, and the springing feature is forthe purpose of allowing them to retire on coming in contact with a hardsubstance, so as to allow the wheel to roll smoothly over. Each wheelturns on its'arbor or axle B, which projects from the side of thefire-box B. To the traction-wheels A A are attached chaingear wheels 00, connected by gear-chains l) D to chain-wheels E E. The chain-wheels EE are on the opposite ends of a main shaft, F, running transversely nearthe middle of the machine. The wheel E is keyed fast to the shaft F, butthe wheel E turns loosely on said shaft. Attached to the hub of theloose chain-wheel E is a spur-wheel, G, gearing with a planetspur-pinion, H, keyed to the shaft I, having journal-bearings in awheel, J, eccentric to the axis of the wheel J. The wheel J turnsloosely on the shaft-F, and has rotation by gear-connection with theengine. Upon the shaft I, at the opposite side of the wheel J from thepinion H, is a chain-gear wheel, K, connected by an endless chain, K, toa chain-gear wheel, L, on the shaft F. The spur-wheel J receives motionfrom the engine when the engine is moving from'place to place, andtheaction of the rotation of the said wheel J is to cause the rotation ofthe traction= and crank or crank wheel p The wheel J (to cause itsrotation) is en! gaged by a spur-wheel, M, which may be thrown out ofgear with the spur-wheelyJ (and also that N) by sliding it endwise uponits arbor O. The spur-wheel N is upon the crank-shaft P of the engine,and this shaft carries the ordinary belt-wheel p, eccentric 12 Nonovelty is claimed in the engine Q, in which q is the steamchest, l theconnecting-rod, and g the feed-water pump. This pump has a supply pipe,1%., leading to the water-tank S, in close proximity to the ash-pan T. Uis the eduction-pipe of the pump, which is coiled within theexhauststeam box V, and extends to the boiler, to feed water thereto.The steam from the engine exhaustsinto one side of the box V, and thesteam passes out at the other end of said box, through a pipe, V, whoseend is turned upward in the smoke-stack W to increase the draft. X isthe steam-pipe supplying the engine. This pipe X extends from thesteam-chest or valve-box q to about the midlength of the long steam-drumY, as shown in Fig. 1. The steam-dru1n extends longitudinally abovetheboiler Z, and near its ends is-connected therewith bysteannboxes orverticaldrums I) b. The arrangement is such that where the boiler isconsiderably pivot-bar d, and is turned to guidethe machine by thefollowing mechanism: a c are rods conneeting the opposite ends of theaxle to the ends of the cross-arms ff of the vertical shaft At the topof the shaft g is a screw-gear wheel, h, engaged by a gear-screw, 2', ona shaft, j, extending to the other end of the boiler and earryin a crankor hand wheel, .70, by which the rod is turned. 1

1 claim-- 1. The traction-wheels supplied with springcalks a working intheir rims,,and projected more or less by the plate-springs a",substantiall y as set forth.

2. The combination of the shaft F, wheels G H J K L, and gear-chain K,to cause the rotation of one or both of the wheels EE on shaft F, butallow different speeds of rotation in the said wheels, by power appliedto the,

loose wheel J, asset forth.

3. The combination of tractionwheels A A, chain-gear wheels 0 C and: EE, gear-chains D D, shaft F, spur-wheels G H J,chainwheels K L, andchain K, substantially as set forth.

4. The longitudinally-extended steam-drum Y connected to steam-boxes bb, atdiii'erent parts of the boiler-top, substantially as set forth, andcombined with the steam-pipe XI opening into the steam-drum at or nearthe niidlength of the latter, substantially as and for the purpose setforth. a

5-. The guiding mechanism, consisting of horizontal shaft j, providedwith worm i, gear

